Apparatus for making elanged pipes



L. H. BRINKMAN.

APPARATUS FOR MAKING FLANGED PIPES.

INVEAITOH A TTOH/VEY 3 SHEETSSHEET I.

Patented May 27, 1919.

vZWAAQ APPLICATION FILED NOV. 15. I916.

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L H. BRINKMAN. APPARATUS FOR MAKING FLANGED PIPES.

APPLICATION FILED NOV. I5, I9l6.

Patented y 27,1919.

3 SHEETS-SHEET 2.

lI/VE/I/TOR M na/my L. H. BRINKIVIAN.

APPARATUS FOR MAKING FLANGED PIPES.

Patented May 27, 1919.

' I APPLICATION FILED NOV. I5. I916. 1,304,930

3 SHEETS-SHEET a.'

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UNITED srnrns PATENT @FFTCE.

LOUIS H. BRINKMAN, orcnn xtninen, NEW JERSEY, AssIGnoR TO GENERAL INDUSTRIES-COMPANY, R CORPORATION OF NEW YORK.

APPARATUS FOR MAKING FLANGED PIPES.

Application filed November 15, 1916.

To all whom it may concern:

Be it known that I, LoUrs H. BRINKMAN, a citizen of United States, residing at Glen Ridge, in the county of Essex and State of New Jersey, have invented new and useful Improvements in Apparatus for Making Flanged Pipes, of which the following is a specification.

This invention relates to apparatus for forming flanges on pipes by turning them up from the body of the pipe.

Ordinarily where a flange is turned up from the body of a pipe the outer edge of the flange is thinner than where it joins the pipe and the greater the radial width of the flange the greater is the diiference in thickness between the inside and the outside edges of the flange. This variation in thickness of the flange produces difficulty when the pipes are to be secured together, in that sloping, instead of squarely radial, surfaces are presented for the bearing surfaces of nuts and rivets. Also this tapering section of the flange causes decrease in strength thereof as the rim of the flange is approached and other disadvantages present themselves.

A most important feature of disadvantage of a flange as ordinarily turned up from the pipe is that the metal is left in a disadvantageous molecular condition so that the strength of the flange is reduced and is rendered unreliable. The operation of forming the flange causes the metal to become stratified and in some cases cracks may even be developed, the metal not having that, homogeneous structure which is conducive to reliability and strength.

In order to reinforce and square up the flange of tapering section referred to, auxiliary metal pieces have been applied but this is an unsatisfactory and unsightly expedient. If attempt is made to upset the flange after it has been completed, very heavy apparatus and power would be required, and even then it would be practically impossible to upset to a sufficient ex- I tent to produce the desired results and in any event the flange would almost surely buckle. It is also impracticable to pro-- duce the desired results by first performing the upsetting or metal thickening operation on the cylindrical body of the pipe and then turning up the thickened portion tov form the flange. In the first place it would .to form the flange.

Specification of -Letters Patent. Patgntgd May 2",? 1919 Serial No. 131,374.

be practically impossible, even with great power and heavy machinery, to upset the pipe body to the desired extent. Further more the rim of the flange would thin out 'as it was turned up so that the purpose of flange metal is not thickened or upset in its entirety eitherbefore or after the flange is turned up, but the thickening takes place gradually as the metal is turned outwardly This may be accomplished by retarding the metal as it is turned outwardly, to such a degree that the metal is thickened to the desired extent, the flange metal being permitted to move optwardly as the desired thickening takes p ace.

Other objects and objects ancillary to the above will appear hereinafter.

In the accompanying drawings which illustrate the invention Figure 1 is a side elevation, partially in section, of an apparatus for flanging pipes, said apparatus being in position for initiating the flanging operation.

Fig. 2 is a view similar to Fig. 1 showing the chuck carrying the devices for forming and operating upon' the flange with appurtenant parts, and showing-a pipe with'the flange partially formed I Fig. 3 is a view similar to Fig. 2 showing the facing and sizing rolls for the flange in the operation of finishing the flange, and

Fig. 4 chuck.

Referring to the drawings the apparatus comprises a base plate A on which are mounted suitable supports as B and C for a pipe D to be flanged. The flanging devices are mounted in a chuck E secured to a rotating shaft F which maybe moved endis an enlarged face view of the 9 engaging with the block 8, the screw being rotatably mounted, but being prevented from moving endwise. The hanging roll 5 is rotatably mounted in a radial line with the upsetting roll in a block 10 movable radially of the chuck in suitable guides by means of the screw '11 which engages with the block. This screw is also rotatably mountedbut secured against endwise movement. The sizing rOll 6 is rotatably mounted in a block 12 movable radially of the chuck in suitable guides by the turning of the screw 13 which may be rotated but not moved endwise. The facing roll 7 is rotatably mounted'in'the-block 11 which is movable radially of the chuck in suitable guides .by .the turning of the screw 15 which is in screw threaded engagement'with the block 14 and may be turned but is mounted to prevent endwise movement. The outer ends of the screws 9 .and 11 are provided with turnstile "heads 16 and '17, the cross bars of which may engage a tappet 18 which is pivotally mounted upon the end of a bar sliding in-the support 20. By means of the handle'21 the tappet may be rocked on its pivot 22 so as to be moved into the paths of :the turnstile arms, orremoved therefrom at will. This arrangement provides for the automatic adjustment of the upsetting and fianging rolls during the operation of the machine. The chuck may be rotated from a cone pulley 23 which is splined on the shaft F sothatlit rotates With the shaft but may move axially thereon. This permits the chuck to be moved along the axis of the .pipe by any suitable means such as the hydraulic cylinder G the operation of which ,to produce pressure at willis well known so that the connections for controlling the fluid pressure are not illustrated in detail. An endwise thrust is imparted to thesha'ft F by means of athrust coupling 24 which permits relative {rotation of the shaft and piston vrod 25 of the hydraulic cylinder. :In order thatthe tappet 18 may be maintained in proper relation to the turnstile heads as the chuck is moved'back and forth, the bar 19 is secured to the piston rod 25 so that the tappet moves back and forth with the chuck. The tappet isof sufficient width so that it will engage the cross-bar a sufficient length of time to accomplish the desired movement.

vFig. 1 shows'the apparatus in condition for beginning the flanging'operation. The metal pipe 1), usually heatcch'is secured in the clamp 1. The flanging roll is adjusted so that its cylindrical surface 26 is in contact with the interior of the pipe and the upsetting roll i is adjusted to the desired radial position vof theehuck by means of the respective adjusting screws. The tappet 18 is thrown into the lowermost positionv as shown, in which it is limited by a stop pin 27 on. the tappet which engages with the end of'the arm 19. It will be observed that the head '17 is at a greater distance from the axis of the chuck than the head 16 so that withthe tappet set as'just described it will not engage the turnstile arms of the head 17 for adjusting the flanging roll but will lie in the path of the similar arms of the head 16 for adjusting the upsetting roll. The facing roll 7 which has its axis radial by turning its adjusting screw 13 in a manner similar to that employed in connection. with the facing roll screw.

The flanging roll having been adjusted to'-accord with the interior diameter of the pipe, and the sizing, facing and upsetting rolls having been adjusted as described, the operatoradjusts the hydraulic controlling valves to permit the fluid to bleed from one side of the piston of the hydraulic cylinder. This applies an endwise thrustto the shaft 1F and the chuck is thrust slowly against the end of the pipe at a speed depending upon the rate of bleed. The chuck being meanwhile rotated, .the end of the pipe will be deflected outwardly along the curved surface 25' between the cylindrical surface 26 and the vertical surface 2810f thefianging roll. The metal will then travel along the vertical face 28 until it comes in contact with the upsetting roll l. The retarding thrust exerted by the upsettingroll as the metal is turned outwardly into the flange will knead and upset the metal, thereby thickening it to a suitable degree to form the flange desired This treatment of the metal makes it homogeneous and prevents thedevelopment of cracks or stratification.

In the apparatus shown the upsetting roll remains stationary until a crossbar of its adjusting screw engages the tappet when the screw will be turned and the roll moved radially outward. The upset and thickened metal may then move outwardly under the action of the flanging roll until it again comes in contact with the upsetting roll when it willbe again retarded, causing upsetting and thickening of the metal at the end of the pipe wall, this operation continuthickening.

ing until the tappet again turns the screw and moves the upsetting roll still farther outwardly. While but one tappet has been illustrated it will be understood that a number of tappets might bearranged aboutthe chuck so that instead of having the upset roll moved outwardly once per revolution,

it might be moved a number of'times in To produce a flange of uniform thickness therefor the flange metal must be made thicker at the start than the flange is to' be, this excess of thickness depending upon the "-r adial".position in the flange which the metal is'to occupy. Thus the metal first turned up is so thickened [that when it reaches the outermost portion of the flange "and has been thinned accordingly, it will give the desired flange thickness. Flange metal for the intermediate portions will be excessively thickened but to a less degree as the inner side of the flange is approached,

' the metal at the inner edge being of the desired thickness of flange without any exof the hydraulic cylinderf This metal must find space either in outward movement or by When therefore it is retarded by the upsettingroll it must thicken and the greater the retardation the greater will be the thickening. The amount of thickening or upsetting of the metal therefore de pends upon the frequency and extent'or rate Y of outward movement of the upsetting roll with relation to the axial. movement of the flanging roll. By proper adjustment of these movements the flange may be made cess. This gradual variation of the thick enlng of the flange metal from a maximum at the beginning to a minimum at the end may be accomplished by varying the speed at Which the chuck moves toward the pipe, the thickening depending upon the ratio of the axial speed of the chuck to the radial speed of the upsetting roll as before stated.

Thevariations in speed of the chuck may be effected by regulating the amount of bleed from the hydraulic cylinder. If this is made 'suflicient at the start to produce the desired of any thickness desired. It may also be made of any radial extent or height desired by continuing the operation as described as long as may be necessary. This is regardless of the thickness of the metal" of the pipe, because, .whatever this thickness, the metal is accumulated from the body of the can be successfully accomplished to any de- 'sired degree without the use of excessively heavy power or apparatus because the upsetting or thickening action operatesat any given time upon only a small portion of the flange metal, which having beenbrought to the desired condition is turned up into the thickening it may be gradually reduced as the chuck progresses so that the speed of the chuck and thickening of the flange m t l is reduced. By suitably controlling the cylinder and also the upsetting roll, the

thickness. Y The flange having been built up to the depipe to the desired extent, and further this I flangemay be made to vary in thickness in any desired manner as well asof uniform sired height the bleedfromthe hydraulic cylinder is stopped which stops the axial movement of the chuck and it will be held of the head 16 into the path ofthearms of the head 17 when the rotation of the chuck flange and the operation-is directed against Y a succeeding section of'the pipe wall so that it is unnecessary at any time to operate through'the whole-body of the metal of the flange as is. required in flanging operatrons previously referred to.

It will be observed that the first metal:

last turned up forms theinnermost portion of the flange, intermediate portions being successively, turned upJoetween these two extremes. As the sectlon of the metal moves turned up forms the outermost, while the outwardly it must cover-a larger area and consequently becomes thinner. The metal to this action to the greatest extent while the metal lying at the innermost part of p the flange is practically free fromit, intermediate flange portlons beingaifectedjaccordingto their distances from the pipe.

will effect the turning of the screw 11 .and the retraction of the flanging roll radially inward-to a position as shown in Fig. 3. Thechuck is then again thrust axially toward the end of the pipe when the facing vroll 7 comes against the outer face of the flange while the sizing roll 6 is brought into position to bear upon the periphery of the flange. The facing roll being forced against the flange by a suitable pressure exerted by the hydraulic eylindeigthe flange face will be suitably fin shed leaving it smooth and substantially radial while-the back of the flange bearing against the bushing will be substantially parallel to the outer face. The sizing roll will roll down the periphery of the flange smooth and ofthe desired size. This sizing roll preferably overhangs the edge of the flange as shown (see Fig, 3) the bushinglf being cut away at-3O for this purpose. Also this cuttingaway permits axial movement of the upsetting roll, so that the sizing and facing rolls may be moved into operative position. 1

The flanging operation having been completed as described, the chuck is backed off from the pipe by suitable manipulation of the hydraulic cylinder-and the partsare adjusted for-initiating anotherflanging operailOIl. The cycle-of operations is then completed and may be repeated to form any number of flanges desired.

It will beobserved that by the operations described a flange of any desired thickness vor height may be formed upon a pipe re gardless ofthethickness of the walls of the pipe, that this flange may be made of uniform thickness throughout and that the flange is homogeneous and free from undesirable metal conditions, a finished flanged pipe-being shown in Fig. 3.

While the invention has been illustrated in what is considered its best embodiment it may have other embodiments without departing from its spirit and it is not therefore limited to the structures shown in the drawings, claimsbeing appended to point out the invention in accordance withthe-patcent statutes.

What I claim is:

1 In a pipe flanging machine the combination with means for holding the pipe of means for turning up metal from the pipe to form a flange and means bearing upon the periphery of the flange and movable 'independently of the pipe supporting means for variably limiting the outward movement of the metal being turned up.

2. In a pipe flanging apparatus, the combination with -means for holding the pipe wall adjacent the flange against outward movement, of a chuck having mounted metal of the pipe into a flange, and an upsetting roll for limiting the outward vmovement of :the flange metal, said rolls and holding means being adjustable with relation to said chuck and eachqother, means for relatively rotating said pipeand chuck and means for forcing said chuck and pipe toward each other. w

4. In a pipe flanging apparatus thecombination with means forholding the pipe, of

a chuck having mounted. therein a flanging roll for turning ,up the metal of the pipe into the flange, an upsetting-roll for limiting the outward movement of-the metal for thickening the flange metal, said rolls being relativelymovable,and a facing roll for co operating with ethesideof vthe flange, means for relatively rotating said pipe and chuck and means for forcing said chuck and pipe toward eachiother.

, 5. :In a pipe flanging apparatus, the combination withmeans for holding the pipe, of a chuck having mounted thereina flanging .roll :for turning up the metal of the pipe into the flange, an upsettingroll limiting the outward movement of the metal for thick ,ening the flange metal, saidlrolls being relatively movable, andasizing roll, for operating on the flange periphery, {means for relatively rotating said ,pipeand chuck and means for forcingsaid chuck and pipe toward each other.

6.. Ina pipe flanging apparatusthe combination with means for holding the pipe of a chuck having flanging,:upsett1ng, sizmg and facing rolls for form ng and acting upon the flange, means for relatively rotating said pipe and chuck and'means for forcing said chuck toward said ,pipe, said up setting and flanging rolls being relatively adjustable.

7 In a pipe flanging apparatus the combination with :means for holding the pipe of a chuck having flanging, upsetting, sizing and facing rolls for forming and acting upon the flange, said rolls being adjustable with relation ,to said chuck, and said upsetting and flanging rolls being adjustable with relation to each other, means for relatively rotating said "pipe and chuck and means for forcing saidchuck toward said pipe. 7

' 8. In a pipe flanging-apparatus the combination with means for-holding the pipe, of a flanging roll, means'for forcing the flanging roll against the pipe, ,an upsetting roll movable radially of the pipe with relationto the flanging roll, means for moving the upsetting roll radially of the vpi e with relation to the flanging roll as the ange is formed a support for the rolls and means forrelativelyrotating the roll support and the pipe. r i

9. Ina plpe flanging apparatus the combination with means for holding the pipe,

of a chuck having flanging, upsetting and sizing rolls having their axes substantially parallel {to the pipe axis, and a facing roll having its 'aXis' fsubstantialy radial of said pipe, said rolls being ad ustable radially of said pipe, means for relatively rotating said chuck and pipe, .and means for forcing said chuck toward said pipe.

'10. In a pipe flanging apparatus, the combination'with means for holding a pipe, of

a rotatable chuck having a support for the interior of the pipe, means for bearing against the end of the pipe for turning it outwardly as the chuck and pipe are pressed toward each other, means for limiting the outward movement of the metal, said limiting means being radially movable with relation to said support, means for relatively moving said support and limiting means.

radially of the pipe, said means for turning the metal outwardly and said limiting means being fixed from movement relative to each other in a direction parallel to the axis of the pipe, means for relatively rotating the chuck and pipe and means for pressing said chuck and pipe toward each other.

11. In a pipe flanging apparatus, the combination with means for holding a pipe, of a rotatable chuck having a rotatable roll for supporting the interior of the pipe, rotatable means for bearing against the end of the pipe for turning it outwardly as the chuck and pipe are pressed together, a roll rotatably mounted in the chuck extending transversely of the path of the outward moving metal for limiting such outward movement, said limiting roll being movable radially of the chuck with relation to said supporting roll, means for relatively moving said supporting roll and limiting roll, said means for turning the metal outwardly and said limiting means being fixed from movement relative to each other in a direction parallel to the axis of the pipe; means for relatively rotating the chuck and pipe, and means for pressing said chuck and pipe toward each other.

12. In a pipe fianging apparatus, the combination with means for holding a pipe, of a rotatable chuck having a rotatable roll for supporting the interior of the pipe, rotatable means for bearing against the end of the pipe for turning it outwardly as the chuck and pipe are pressed together, a roll rotatably mounted in the chuck extending transversely of the path of the outward moving metal for limiting such outward movement, said limiting roll being movable radially of the chuck with relation to said supporting roll, means for relatively moving said supporting roll and limiting roll, said means for turning the metal outwardly and said limiting means being fixed from movement relative to each other in a direction parallel to the axis of the pipe; means for relatively rotating the chuck and pipe, and means for pressing said chuck and pipe toward each other, the axes of said supporting and limiting rolls being substantially parallel to the pipe axis.

In testimony whereof I have signed this specification this 13th day of November,

LOUIS H. BRINKMAN.

Copies of this patent may be obtained fol five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

